Windows Media client-side fetching allows a client device to pull multimedia files directly from the Internet or Intranet without having to go through the host server. This is known as Windows Media client-side redirection. By streaming media directly to the client, the server is relieved of the processing and the network is relieved of the bandwidth consumption.
Configuring Windows Media client-side fetching
Windows Media redirection needs to be enabled using policies. Make sure that the client has access to the Internet or Intranet to play the content.
Make sure the URL to the content hasn't been previously blacklisted. When an attempt to access a URL fails, the URL is added to a blacklist for the duration of the user's session. ...